/*
- * Project: libFIRM
- * File name: ir/ir/iredges_t.h
- * Purpose: Everlasting outs -- private header.
- * Author: Sebastian Hack
- * Created: 15.01.2005
- * CVS-ID: $Id$
- * Copyright: (c) 1998-2005 Universit�t Karlsruhe
- * Licence: This file protected by GPL - GNU GENERAL PUBLIC LICENSE.
- */
-
-/**
- * everlasting outs.
- * @author Sebastian Hack
- * @date 15.1.2005
- */
-
-#ifndef _FIRM_EDGES_T_H
-#define _FIRM_EDGES_T_H
+ * Copyright (C) 1995-2008 University of Karlsruhe. All right reserved.
+ *
+ * This file is part of libFirm.
+ *
+ * This file may be distributed and/or modified under the terms of the
+ * GNU General Public License version 2 as published by the Free Software
+ * Foundation and appearing in the file LICENSE.GPL included in the
+ * packaging of this file.
+ *
+ * Licensees holding valid libFirm Professional Edition licenses may use
+ * this file in accordance with the libFirm Commercial License.
+ * Agreement provided with the Software.
+ *
+ * This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE
+ * WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE.
+ */
+
+/**
+ * @file
+ * @brief Everlasting outs -- private header.
+ * @author Sebastian Hack, Andreas Schoesser
+ * @date 15.01.2005
+ * @version $Id$
+ */
+#ifndef FIRM_IR_EDGES_T_H
+#define FIRM_IR_EDGES_T_H
-#include "firm_config.h"
#include "debug.h"
#include "set.h"
#include "irnode_t.h"
#include "irgraph_t.h"
+#include "iredgekinds.h"
#include "iredges.h"
#define DBG_EDGES "firm.ir.edges"
/**
* An edge.
*/
-struct _ir_edge_t {
- ir_node *src; /**< The source node of the edge. */
- int pos; /**< The position of the edge at @p src. */
- unsigned invalid : 1; /**< edges that are removed are marked invalid. */
- unsigned present : 1; /**< Used by the verifier. Don't rely on its content. */
- struct list_head list; /**< The list head to queue all out edges at a node. */
+struct ir_edge_t {
+ ir_node *src; /**< The source node of the edge. */
+ int pos; /**< The position of the edge at @p src. */
+ unsigned invalid : 1; /**< edges that are removed are marked invalid. */
+ unsigned present : 1; /**< Used by the verifier. Don't rely on its content. */
+ unsigned kind : 4; /**< The kind of the edge. */
+ struct list_head list; /**< The list head to queue all out edges at a node. */
#ifdef DEBUG_libfirm
- long src_nr; /**< The node number of the source node. */
+ long src_nr; /**< The node number of the source node. */
+ long edge_nr; /**< A unique number identifying the edge. */
#endif
};
-/**
- * A block edge inherits from a normal edge.
- * They represent edges leading from a block to a control flow node
- * and are used to quickly find all control flow successors of
- * a block.
- */
-struct _ir_block_edge_t {
- struct _ir_edge_t edge; /**< The inherited data. */
- struct list_head succ_list; /**< List element listing all
- control flow edges to the
- successors of a block. */
-};
/** Accessor for private irn info. */
-#define _get_irn_edge_info(irn) ((irn_edge_info_t *) &(irn)->edge_info)
+#define _get_irn_edge_info(irn, kind) (&(((irn)->edge_info)[kind]))
/** Accessor for private irg info. */
-#define _get_irg_edge_info(irg) ((irg_edge_info_t *) &(irg)->edge_info)
+#define _get_irg_edge_info(irg, kind) (&(((irg)->edge_info)[kind]))
/**
- * Convenience macro to get the outs_head from a irn_edge_info_t
- * struct.
- */
-#define _get_irn_outs_head(irn) (&_get_irn_edge_info(irn)->outs_head)
-
-/**
- * Convenience macro to get the succ_head from a block_attr
- * struct.
- */
-#define _get_block_succ_head(bl) (&((bl)->attr.block.succ_head))
+* Convenience macro to get the outs_head from a irn_edge_info_t
+* struct.
+*/
+#define _get_irn_outs_head(irn, kind) (&_get_irn_edge_info(irn, kind)->outs_head)
/**
- * Get the first edge pointing to some node.
- * @note There is no order on out edges. First in this context only
- * means, that you get some starting point into the list of edges.
- * @param irn The node.
- * @return The first out edge that points to this node.
- */
-static INLINE const ir_edge_t *_get_irn_out_edge_first(const ir_node *irn)
+* Get the first edge pointing to some node.
+* @note There is no order on out edges. First in this context only
+* means, that you get some starting point into the list of edges.
+* @param irn The node.
+* @return The first out edge that points to this node.
+*/
+static inline const ir_edge_t *_get_irn_out_edge_first_kind(const ir_node *irn, ir_edge_kind_t kind)
{
- struct list_head *head = _get_irn_outs_head(irn);
- return list_empty(head) ? NULL : list_entry(head->next, ir_edge_t, list);
+ const struct list_head *head;
+ assert(edges_activated_kind(get_irn_irg(irn), kind));
+ head = _get_irn_outs_head(irn, kind);
+ return list_empty(head) ? NULL : list_entry(head->next, ir_edge_t, list);
}
/**
- * Get the next edge in the out list of some node.
- * @param irn The node.
- * @param last The last out edge you have seen.
- * @return The next out edge in @p irn 's out list after @p last.
- */
-static INLINE const ir_edge_t *_get_irn_out_edge_next(const ir_node *irn, const ir_edge_t *last)
+* Get the next edge in the out list of some node.
+* @param irn The node.
+* @param last The last out edge you have seen.
+* @return The next out edge in @p irn 's out list after @p last.
+*/
+static inline const ir_edge_t *_get_irn_out_edge_next(const ir_node *irn, const ir_edge_t *last)
{
- struct list_head *next = last->list.next;
- return next == _get_irn_outs_head(irn) ? NULL : list_entry(next, ir_edge_t, list);
+ struct list_head *next = last->list.next;
+ return next == _get_irn_outs_head(irn, last->kind) ? NULL : list_entry(next, ir_edge_t, list);
}
/**
- * Get the first successor edge of a block.
- * A successor edge is an edge originated from another block, pointing
- * to a mode_X node in the given block and is thus a control flow
- * successor edge.
- * @param irn The block.
- * @return The first successor edge of the block.
- */
-static INLINE const ir_edge_t *_get_block_succ_first(const ir_node *irn)
+* Get the number of edges pointing to a node.
+* @param irn The node.
+* @return The number of edges pointing to this node.
+*/
+static inline int _get_irn_n_edges_kind(const ir_node *irn, int kind)
{
- const struct list_head *head;
-
- assert(is_Block(irn) && "Node must be a block here");
- head = _get_block_succ_head(irn);
- return (ir_edge_t *) (list_empty(head) ? NULL :
- list_entry(head->next, ir_block_edge_t, succ_list));
+ /* Perhaps out_count was buggy. This code does it more safely. */
+#if 0
+ int res = 0;
+ const struct list_head *pos, *head = _get_irn_outs_head(irn, kind);
+ list_for_each(pos, head)
+ res++;
+ return res;
+#else
+ return _get_irn_edge_info(irn, kind)->out_count;
+#endif
}
-/**
- * Get the next block successor edge.
- * @see See _get_block_succ_first() for details.
- * @param irn The block.
- * @param last The last edge.
- * @return The next edge, or NULL if there is no further.
- */
-static INLINE const ir_edge_t *_get_block_succ_next(const ir_node *irn, const ir_edge_t *last)
+static inline int _edges_activated_kind(const ir_graph *irg, ir_edge_kind_t kind)
{
- const ir_block_edge_t *block_edge;
- struct list_head *next;
-
- assert(is_Block(irn) && "Node must be a block here");
- block_edge = (const ir_block_edge_t *) last;
- next = block_edge->succ_list.next;
- return (ir_edge_t *) (next == _get_block_succ_head(irn) ? NULL :
- list_entry(next, ir_block_edge_t, succ_list));
+ return _get_irg_edge_info(irg, kind)->activated;
}
/**
- * Get the source node of an edge.
- * @param edge The edge.
- * @return The source node of that edge.
- */
-static INLINE ir_node *_get_edge_src_irn(const ir_edge_t *edge)
+* Assure, that the edges information is present for a certain graph.
+* @param irg The graph.
+*/
+static inline void _edges_assure_kind(ir_graph *irg, int kind)
{
- return edge ? edge->src : NULL;
+ if(!_edges_activated_kind(irg, kind))
+ edges_activate_kind(irg, kind);
}
+void edges_init_graph_kind(ir_graph *irg, ir_edge_kind_t kind);
+
/**
- * Get the position of an edge.
- * @param edge.
- * @return The position in the in array of that edges source.
+ * A node might be revivaled by CSE.
*/
-static INLINE int _get_edge_src_pos(const ir_edge_t *edge)
-{
- return edge ? edge->pos : -1;
-}
+void edges_node_revival(ir_node *node, ir_graph *irg);
+
+void edges_invalidate_kind(ir_node *irn, ir_edge_kind_t kind, ir_graph *irg);
/**
- * Get the number of edges pointing to a node.
- * @param irn The node.
- * @return The number of edges pointing to this node.
- */
-static INLINE int _get_irn_n_edges(const ir_node *irn)
-{
-/* Perhaps out_count was buggy. This code does it more safely.
+* Register additional memory in an edge.
+* This must be called before Firm is initialized.
+* @param n Number of bytes you need.
+* @return A number you have to keep and to pass
+* edges_get_private_data()
+* to get a pointer to your data.
+*/
+int edges_register_private_data(size_t n);
- int res = 0;
- struct list_head *pos, *head = _get_irn_outs_head(irn);
- list_for_each(pos, head)
- res++;
- return res;
+/**
+* Get a pointer to the private data you registered.
+* @param edge The edge.
+* @param ofs The number, you obtained with
+* edges_register_private_data().
+* @return A pointer to the private data.
*/
- return _get_irn_edge_info(irn)->out_count;
+static inline void *_get_edge_private_data(const ir_edge_t *edge, int ofs)
+{
+ return (void *) ((char *) edge + sizeof(edge[0]) + ofs);
}
-static INLINE int _edges_activated(const ir_graph *irg)
+static inline ir_node *_get_edge_src_irn(const ir_edge_t *edge)
{
- return _get_irg_edge_info(irg)->activated;
+ return edge->src;
}
-/**
- * Assure, that the edges information is present for a certain graph.
- * @param irg The graph.
- */
-static INLINE void _edges_assure(ir_graph *irg)
+static inline int _get_edge_src_pos(const ir_edge_t *edge)
{
- if(!_edges_activated(irg))
- edges_activate(irg);
+ return edge->pos;
}
-void edges_reroute(ir_node *old, ir_node *nw, ir_graph *irg);
-
-void edges_init_graph(ir_graph *irg);
-
/**
- * Notify of a edge change.
- * The edge from (src, pos) -> old_tgt is redirected to tgt
- */
-void edges_notify_edge(ir_node *src, int pos, ir_node *tgt, ir_node *old_tgt, ir_graph *irg);
+* Initialize the out edges.
+* This must be called before firm is initialized.
+*/
+extern void init_edges(void);
+
+void edges_invalidate_all(ir_node *irn, ir_graph *irg);
/**
- * A node is deleted.
+ * Helper function to dump the edge set of a graph,
+ * unused in normal code.
*/
-void edges_node_deleted(ir_node *old, ir_graph *irg);
+void edges_dump_kind(ir_graph *irg, ir_edge_kind_t kind);
-void edges_invalidate(ir_node *irn, ir_graph *irg);
+#define get_irn_n_edges_kind(irn, kind) _get_irn_n_edges_kind(irn, kind)
+#define get_edge_src_irn(edge) _get_edge_src_irn(edge)
+#define get_edge_src_pos(edge) _get_edge_src_pos(edge)
+#define get_edge_private_data(edge, ofs) _get_edge_private_data(edge,ofs)
+#define get_irn_out_edge_next(irn, last) _get_irn_out_edge_next(irn, last)
-/**
- * Register additional memory in an edge.
- * This must be called before Firm is initialized.
- * @param n Number of bytes you need.
- * @return A number you have to keep and to pass
- * edges_get_private_data()
- * to get a pointer to your data.
- */
-int edges_register_private_data(size_t n);
+#ifndef get_irn_n_edges
+#define get_irn_n_edges(irn) _get_irn_n_edges_kind(irn, EDGE_KIND_NORMAL)
+#endif
-/**
- * Get a pointer to the private data you registered.
- * @param edge The edge.
- * @param ofs The number, you obtained with
- * edges_register_private_data().
- * @return A pointer to the private data.
- */
-static INLINE void *_get_edge_private_data(const ir_edge_t *edge, int ofs)
-{
- /* Get the size of the edge. */
- size_t size =
- is_Block(edge->src) ? sizeof(ir_block_edge_t) : sizeof(ir_edge_t);
+#ifndef get_irn_out_edge_first
+#define get_irn_out_edge_first(irn) _get_irn_out_edge_first_kind(irn, EDGE_KIND_NORMAL)
+#endif
- return (void *) ((char *) edge + size + ofs);
-}
+#ifndef get_block_succ_first
+#define get_block_succ_first(irn) _get_irn_out_edge_first_kind(irn, EDGE_KIND_BLOCK)
+#endif
-/**
- * Initialize the out edges.
- * This must be called before firm is initialized.
- */
-extern void init_edges(void);
+#ifndef get_block_succ_next
+#define get_block_succ_next(irn, last) _get_irn_out_edge_next(irn, last)
+#endif
-#define get_irn_out_edge_first(irn) _get_irn_out_edge_first(irn)
-#define get_irn_out_edge_next(irn,last) _get_irn_out_edge_next(irn, last)
-#define get_block_succ_first(irn) _get_block_succ_first(irn)
-#define get_block_succ_next(irn,last) _get_block_succ_next(irn, last)
-#define get_edge_src_irn(edge) _get_edge_src_irn(edge)
-#define get_edge_src_pos(edge) _get_edge_src_pos(edge)
-#define get_edge_private_data(edge,ofs) _get_edge_private_data(edge,ofs)
-#define edges_activated(irg) _edges_activated(irg)
-#define edges_assure(irg) _edges_assure(irg)
-
-#endif /* _FIRM_EDGES_T_H */
+#endif
projects / libfirm / blobdiff